One thing that did make it through that was the ruling that mediums which lack said limitation like cable and internet don't have the rationale for that restriction and thus the censorship that weak minds had become accustomed to vanished in a puff of logic. This has been the case since cable porn channels were a thing.
By regulating YouTube you effectively regulate what /all/ platforms may push. It isn't simply that YouTube decides that "You know what we don't want to post that." - an exercise of their collective Freedom of Association but "The government doesn't want us to post that so we can't." You can't just deputize tasks to third parties and expect the limits on exercises of power to vanish. Otherwise we'd see hordes of private detectives as a work around to Fourth Amendment rights.
Said regulations on youtube would be a major infringement upon freedom of the press and speech. Not to mention it is logically equivalent to censoring your own press is whenever it fits whatever criteria they dislike.